163879520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{20903}}^1$

素因数の和:20932

約数の個数: 72

約数和(自身を含む): 450397584

約数和(自身を除く): 286518064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 20903, 41806, 83612, 104515, 146321, 167224, 209030, 292642, 334448, 418060, 585284, 668896, 731605, 836120, 1024247, 1170568, 1463210, 1672240, 2048494, 2341136, 2926420, 3344480, 4096988, 4682272, 5121235, 5852840, 8193976, 10242470, 11705680, 16387952, 20484940, 23411360, 32775904, 40969880, 81939760, 163879520]

約数ペア:

[(1, 163879520), (2, 81939760), (4, 40969880), (5, 32775904), (7, 23411360), (8, 20484940), (10, 16387952), (14, 11705680), (16, 10242470), (20, 8193976), (28, 5852840), (32, 5121235), (35, 4682272), (40, 4096988), (49, 3344480), (56, 2926420), (70, 2341136), (80, 2048494), (98, 1672240), (112, 1463210), (140, 1170568), (160, 1024247), (196, 836120), (224, 731605), (245, 668896), (280, 585284), (392, 418060), (490, 334448), (560, 292642), (784, 209030), (980, 167224), (1120, 146321), (1568, 104515), (1960, 83612), (3920, 41806), (7840, 20903)]